Exposing One's True Spots (Panther TF)

Story by Gabriel Moon on SoFurry

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Part of the "Off the books series" concept by Bukefalos06 where a woman working under cover in Reyna's clinic finds the opportunity to steal the transformation serum, but gets "spotted" along the way :)


Nadia surveyed the lab once more, making sure she hadn't missed any additional security measures. Though she had this location scoped out for weeks with her eventual endgame in mind, it would not pay to be careless now. Not when she was so close to her objective. One simple heist and she would be rid of this godforsaken company once and for all!

The opportunity had been too good to pass up. She was left alone in the 'change room', cleaning up after one of the animal hospital's recent 'messes'. Thankfully, the latest animal subject had been a cheetah, nothing too messy. Times when the victim was destined to be a stinking farm beast, she was expected to clean up after any leavings the dumb animal had a mind to bless them with! But still, there were torn clothes, damages to equipment, and a few blood stains from one of the unfortunate handlers that needed to be tended to.

In the middle of the experiment, Dr. Ramírez left abruptly, citing some business she had to attend off-site. Nadia was left alone, which wasn't too usual, given the nature of the experiments conducted. However, being left alone adjacent to the A.R.C storage lab with a key in hand was another matter entirely.

Dr. Ramírez was the only one in charge of the drug and was always so meticulous with its handling and care lest it fell into hands that were not her own. That woman was overly cautious, even for one of her position and power. Thus, she was the only one with access to the room containing the ampules. Except for today, with her keycard left carelessly on the floor, kicked away in the struggle with the feral angry animal.

It was the first time in two years that Nadia had the opportunity to actually steal a vial of A.R.C, the mutagenic formula that was the bread and butter of N.O.A.H's experiments. On the surface, Nadia was employed by a large veterinary clinic in Chicago, working for Dr. Reyna Ramírez. Yet underneath it all was a front for N.O.A.H's off the book's projects, things much more sinister than even Nadia had been prepared for.

Never in her 39 years had the British-Iranian woman ever seen such inhumane experiments. The lab she was to break into was filled with ampuls of A.R.C, a formula synthesized from alkaloids harvested from a rare plant with mutagenic properties. When isolated and concentrated, they could be added to a target vector to enter a host's DNA. The species-specific DNA, in tandem with the host's naturally dormant ancestral DNA, was able to change the host into the desired animal species. The victims were often criminals on death row that would not be missed from the world. And, admittedly, Nadia did see the justice in that. Turning the scum of the earth into endangered specials to save the planet aligned well with her own morals.

And if N.O.A.H had left it at that, Nadia would have no issue allowing their business as usual. But no. Business rivals, personal enemies, and even people who accidentally stumbled across proof of their activities were all fair game in N.O.A.H's experiments. Most recently, Nadia had to keep her mouth closed when the girlfriend of a former client of the clinic, Andrew Rossini, was slowly turned into a fennec fox. Her last human thoughts were most likely contemplating the horror that her lover was forever a dairy cow. It took Nadia every ounce of willpower not to blow her cover and try to save the poor woman!

When Xross-gen, her former company, offered her an infiltration assignment, she'd jumped at the chance to prove her worth and advance in the organization. She didn't believe it at first, of course. The notion of technology to turn people into animals was preposterous, no matter how advanced said technology was. But soon, she was exposed to the truth, and her hatred for the rival company grew ten-fold.

Given her flawless work ethic, Nadia was quickly promoted to the inner circle and privy to all knowledge that her boss, Dr. Reyna Ramírez, shared on her projects at the clinic. Nadia willfully obeyed, although many of the experiments filled Nadia with rage at their injustice. She was fiercely loyal to Xross-gen, and not only for the paycheck, which in and of itself was substantial. She wanted to help her company shut down an evil corporation, one not only a threat to their stocks but also the safety of the free world.

So here she was, prize in hand. This ampule would be the key to shutting down N.O.A.H and all their inhumane experiments. This was the moment Nadia had been waiting two years for, the moment when she could leave this hellhole with her objective! With physical proof of the sinister technology, there would be more than sufficient evidence to expose what N.O.A.H's agents had been up to off the books, and perhaps the chance to turn some of the unfortunate victims human once more!

Nadia truly believed that the mutagenic formula should be in her primary employer's hands. They would truly put it towards the betterment of mankind. There were so many medicinal applications for such a compound. The risk always existed that someone in her own company would try to profit off the serum, perhaps sell it on the black market, yet it was minimal when compared to what she'd seen N.O.A.H do with her own eyes!

She knew the risks of getting caught, of course. N.O.A.H was truly heartless and would not hesitate to use the formula on a traitor. Nadia suspected that was why people like Dr. Ramírez worked for them, for fear of becoming the organization's newest experiment. But given what was at stake, it was well worth the risk to herself!

It would only take one vial for her to be successful and for Xross-gen to reverse engineer the formula. If she could help it, Nadia preferred to keep her involvement secret until it was too late for N.O.A.H to stop them. Fortunately, there was one loose ampul on the table, sitting near one of the Jet Injector systems. It was almost too easy. A simple grab, and she would lock the door behind her, leave the keycard where she found it, and be home free!

Yet to her absolute horror, someone was standing in the door to the lab as she turned to leave. Shawn Owens, fellow N.O.A.H employee and, much to her chagrin, Nadia's ex-lover. She had initially gotten close to him to learn what secrets she could, but eventually, their relationship helped her cement her position in Reyna's good graces. Nadia promptly dumped him afterward, of course; Owens was great in bed but was as dumb as a bag of bricks, stupidly loyal to N.O.A.H's agenda. She made it look convincing but had no regrets about leaving the poor man heartbroken.

"What are you doing here? There's no way the Doc authorized this!" Owens shouted, very aware that Nadia was an intruder.

It was unlikely Owens could make out her specific form in the dark room. Yet still, she could see him fumbling for the emergency button. If he succeeded, then the entire building would sound with a blaring alarm klaxon. Nadia had little chance of escaping if that happened, and certainly not past the burly man who was easily twice her size. Her only chance was to appeal to his sensibilities, as limited as they were.

"Nadia?" Owens asked, looking a little perplexed as his former love stepped out of the shadows and regarded him with a face full of sorrow. Of all people he could catch stealing from N.O.A.H, he never would have expected HER.

"Shawn..I..." Nadia stammered, trying her best to fake fear and uncertainty. Shawn had been painfully easy to manipulate in their relationship, and Nadia's only hope was to call on that now!

"Nadia, why?" Owens asked, horrified. What was she thinking?! Owens pulled his hand from the button, wanting to hear Nadia out.

"Shawn...it...it was Xross gen...they...they know about what N.O.A.H is doing. They don't...they want to STOP them, Shawn! They blackmailed me...they have a mutagenic formula too! It's less refined...they would have injected my family Shawn! I didn't have a choice!"

Fake tears ran down her face as the words tumbled out effortlessly, making her performance all the more believable. Judging from the sympathetic reaction on her ex-lover's face, Nadia knew she had him right where she wanted.

"Shawn...I made a mistake. I'm scared. I should have...I should have come to you! I didn't want to admit it, didn't want to seem weak! You don't know how it is...being a woman in a company like this...never being able to let my guard down...never able to take what I wanted...what I've always needed..." She finished, a pleading look in her eyes.

Owens' look of confusion turned to sympathy as the reality of his former love's words sank in. It was a truly terrible situation, one that was not easy to escape. And what she said...Owens knew that Nadia had dumped him too abruptly. There had been no lead-up, no sign. If it was because she was being blackmailed, if she didn't want him to get caught up in it, then...

"It's OK, Nadia. Let's talk to the Doc. She can get this cleared up. She can protect you. I can protect you," Owens said, words dripping with tenderness and compassion for the woman who had so recently won his love. Had his love still, if he was being honest with himself.

"Oh, Shawn!" Nadia cried out as she raced towards him. Nadia embraced him, and Owens forgot how much he missed her touch, her scent. Surely Dr. Ramírez would understand and would forgive Nadia of the preconceived slight. She would convince her superiors not to punish Nadia, and help shut down the company that threatened his love!

The burly man hardly had time to react before the plunger was injected directly into his neck. Nadia had kept the Jet Injection system hidden behind her, the one from the table she had grabbed in the dark before revealing herself to Owens.

"AAHH What the! NadiAAARRRRRR!" Shawn yelled as his eyes changed from their normal brown to a golden yellow, and the pupils dilated. He fell to the floor in pain from the serum having been injected right into his carotid artery. He could only moan helplessly as the change took hold of his face, and his cheeks burned as sharp hair burst from the sensitive skin.

Shawn's blood went cold as he realized he'd been injected. He was transforming! He couldn't be sure into what, but he knew the Doc had been working through a series of big cat projects, and the initial changes to his vestige seemed to match the theory.

He could feel his neck swelling with muscle as his skin prickled from thousands of sprouting hairs. He groaned as his jaw started to ache, the muscle underneath feeling sore and strained as it shifted. His nose twitched, and he sneezed before the cartilage crunched, and the whole thing began to flatten. The itching spread rapidly from his thickening beard, as it ran to merge with the human hair atop his head. It was happening so fast!

"NAAARRRRRDDIA! GGRRRRRREEELLLPPP MEEERRRRRR!" He tried to growl, but his vocal cords were among the first things to be altered by the transformation. His muscles burned as his jaw cracked forwards, teeth falling from his mouth as new fangs poked through his bleeding gums. He tried once more in vain to cry out, but the feline sounds he produced scrambled him into silence. He could only stare helplessly as his cheeks puffed out, and more teeth took shape around his rough, keratin barbed tongue.

Nadia didn't take the time to regard her former lover as she bolted out the door. Before exiting, Nadia grabbed his identification card for good measure. She wasn't sure that her's would work. If someone else came by and saw Owens turning into a panther, there was every chance they would pin the theft on Nadia. Better safe than sorry.

She still carried the one loose ampule of serum, the same formula as the one in the Jet Injector system. The label on the side had read PP01. Nadia knew the system well; PP stood for Panthera pardus, and the 01 indicated no change of gender. Owens would keep that lovely thick penis, although now it would be a lot smaller, barbed, and ready to stimulate a feline's vulva.

She hated to be hypocritical and force someone to undergo the changes she so much despised. But Nadia had no choice. The man's altered vocal cords would prevent him from exposing her as Nadia made her escape. Besides, Owens had chosen his fate when he signed up to work for this company. It was likely he'd be changed eventually anyway, to be silenced by those sadistic bastards. And a male panther would be a more preferable choice to whatever they injected him with, right?

The hall was quiet, and Nadia praised her luck. There was only one more set of doors leading into the main lobby, and then she would be home free!

Yet Nadia's heart sank upon bursting out the lab doors and seeing what awaited her. Reyna stood there, clipboard in hand and appearing almost bored. She looked up, unsurprised to see Nadia run through the door, panting from her panicked run. But it wasn't Renya that concerned Nadia the most. Rather, it was the two armed guards leveling their weapons at her. Naida wasn't fooled; though bullets might be preferable, given the fate Reyna might have planned for her, the guns were loaded with tranq darts. Perfect for dealing with a rogue animal experiment. Or a potential victim or traitor, trying to escape.

"It took you this long to make your move? I expected better," Reyna said, matter of factly. "We suspected for some time a rival company sent an operative to this facility, which made you the logical choice given your time of hire. I have to give them some credit, there was nothing in your background that even the dark web could dig up."

"Even after all this time, you played a loyal employee. I surmised the only reason you hadn't betrayed me yet was that you lacked the opportunity to do so. Therefore, I provided it. And you took the bait. I hate being right sometimes, but it is what it is," Reyna finished, sending a text on her phone.

Staring her eventual fate in the face, Nadia could only laugh. "So, you've got me, have you?" She said in a mocking tone, dropping her practiced American accent for her natural British tongue.

"Now what is it you will do with me?" She said with a hint of bravado. Truth be told, she was scared out of her wits. Nadia knew the consequences of failure very well. She'd seen it first hand. But if these were to be her last moments of humanity, she wanted them to be on her terms. There was something noble about going out this way, at least in her eyes.

"For now, I suggest you follow us back to the lab. Despite what you might think, it's in your best interest to listen to me. After all, I have the power to make your fate worse than it could be," Reyna said, motioning for Nadia to move.

With her captive's back to her, Reyna let herself breathe for the first time since the whole incident started. She had been under enormous pressure from her superiors to follow up on the lead on a potential mole. Leaving her keycard on the floor had been a rather last-ditch effort, and she was thankful it had paid off.

Still, Nadia had been under her employ for almost two years. It was a slight that the heads of N.O.A.H would not look kindly upon. She had to find out whatever Nadia had done to their operation, or else face potential repercussions as worse as what she would have to do to the spy.

The four of them walked back down the hall, dart guns trained on Nadia. She knew it was pointless to try anything now. If she did, she would be asleep before she moved 5 feet, and likely wake up in possession of a new fur coat, scales, or something even worse. Her only chance was to stall, to see if Reyna gave her an opening. It was a slim chance at this point, but it was the only one she had.

A low growling from inside the room forced one of the guards to take point, leveling his weapon before entering. Nadia didn't want to follow. It had pained her enough to force a change upon Owens, but she didn't want to witness her ex's final fall from humanity.

Yet she was forced into the room to the sight of Owens writing on the floor, deep in the throes of change. Reyna regarded her former colleague with a hint of pity on her face. Owens had been a wonderful employee, after all. And N.O.A.H would regret his 'reassignment.' But, Reyna was certain she could weave this tragedy into a tale that would benefit all parties involved. It was what she did best, after all.

The man before them could hardly still be called a man at all, at this point. The A.R.C. serum worked rather fast once injected. Owens's face was entirely feline now, covered in black fur as his feline tongue panted from the agony of the transformation. Yet his pained expression still held some semblance of humanity as his body continued to writhe and change.

"I see how you evaded Owens now," Reyna said, a hint of disappointment on her face. Noticing the look reflected on Nadia's, Reyna smiled slightly. "Now, now, Nadia. I'd take a very good look. If you don't answer all of my questions satisfactory, then that will be you. If you liked his prick so much as a man, I'm sure your cunt lips will prefer it even more when you're a cat like him!" Reyna said, the idea sounding very appealing.

Reyna was not prepared for the barking laugh that came from her captive's lips. "And why should I tell you anything? Because you'll let me go if I do? Let me be human!? HA! I'll do more for the cause with my silence!" Nadia said in defiance.

Reyna too laughed then, the idea of torturing this spy all the more exciting. If this bitch didn't give her what she wanted, confirmation of her employer and what she had been sent to do, then Reyna's bosses would rain hell upon her. She could at least enjoy inflicting a little cruelty first.

"You think that your fate will be the same either way? You've truly learned nothing from your time here. While yes, I won't deny that either way, you'll be baring his cubs,' She started, motioning at the still-changing panther man, "There are many ways I can change you. How much of your humanity would you prefer to maintain when he starts fucking your feline pussy, hm? I hear it hurts quite a bit for the female, especially since cats copulate many consecutive times per session," Reyna said, mimicking the laugh that burned her ears.

Nadia's smile faded as Owens rolled over, his still-human prick at full erection. But it wasn't going to last that way. Nadia could see how red the shaft was becoming. The tip grew pointed, dripping viscous pre down the length that pooled in the furless sheath at the base. The former man's testicles were swollen with panther cum, nestled inside a furry black ballsack.

But it was the spines that really drew Nadia's attention. The crown of Owens's penis started spouting dozens of tiny backward-facing feline spines, used to rake a female's inner walls upon each thrust, to stimulate her into ovulation and ensure her pregnancy. Nadia shivered visibly; she didn't want an inkling of her human mind intact if she was forced to endure such painful breeding!

A smile crossed Reyna's face as the fear crawled over her captor's own. She might just get the confession she wanted, after all. "You have until he finishes his changes to decide. After all, an angry panther in an unknown place is bound to give us trouble. One that has just successfully bred, however, will be much easier to handle. Of course, for most cats, breeding takes several hours and multiple sessions. How much of your humanity would you prefer intact while he fucks the rest of it out of you, hmm?" Reyna said, hoping for the desired response.

Nadia said nothing as she watched her former lover struggling through the rest of the process. He was nearly entirely a panther now, his swollen barreled chest fusing with flattening shoulder blades and thinning hips to make his quadrupedal stance permanent. His entire trunk and legs were coated with luxurious black leopard fur. His still-sprouting tail thrashed violently as new muscle filled it within. It was obvious the human parts of Shawn's brain were struggling with the reality that he now possessed an alien appendage he could not control.

The man's still-human fingers clenched the floor in agony, black fur sprouting from the backs of his hands. New claws tore from the inner joints of his fingers, turning into deadly sharpened points as the length of the fingers retracted. His thumbs twitched uncontrollably in tandem as they were jerked suddenly into his stretching palms. A thick, black-skinned pad birthed from the pale pink flesh, joined by four more on each dwindling fingertip until he was left with a pair of black leopard paws.

His hind legs began to follow suit, the heels stretching while his calves shrank in comparison. His big toes twitched and receded into his heel until nothing visible remained to denote their presence. Forced on the balls of his feet, Owens could feel his dwindling toe tips forming coarse pads as feline nails burst from the joint between his now-separated bones in his toes.

"Last chance!" Reyna said, perhaps a bit more loudly than she'd intended. She really wanted to get something out of the woman before injecting her. Still, Reyna was a woman of her word and loaded a carefully selected ampule into a Jet Injector before having one of the guards take the ampule in Nadia's hand and handing it to the doctor.

"The sample in my hand is the same PP01 formula you used on Owens," Reyna began as she motioned to the panther, whose body language was starting to indicate he was adapting mentally as well. As though in response, he raised his thick paw and started to lick it with a rough tongue, grooming his forehead as the last bits of fur filled in.

"The one in the injector system, however," Reyna continued. "Is a less concentrated version of the same formula. It was designed to further study the effects of change on one's mentality during and after. It's much slower and will take hold of your mental facilities sometime after the process concludes. In your case, it will provide the perfect punishment for your lack of cooperation. Since our formulas are famous for putting the victims into heat, as you well know, your new boyfriend will be fucking you senseless while every bit of your human mind feels that panther penis in your folds. If you don't want that, talk. Now, who hired you?" Reyna demanded, glaring down at Nadia.

Nadia said nothing. The process would hurt, akin to torture. But her company would still fight on. Others would be free to continue the work, to expose the horrors of N.O.A.H to the world.

Nadia spat as the guards took her arms to hold her still. "I've got nothing to say to you, do your worst!" She said defiantly. She had no intention to go out as a coward.

Despite her annoyance at the woman's stubbornness, Reyna had to admit a modicum of admiration for Nadia's stance. It was such a waste of good talent, of good humanity. Yet without any fanfare, Reyna walked up and injected the formula into the olive-skinned woman's neck. There was an audible hiss, signaling the serum had been successfully delivered.

The guards then gently carried the woman to the table that Nadia had so often cleaned after other victims had met their fate. Her hands and feet secured, all three exited the room to watch the show. Though Reyna normally preferred to stay in the room, she figured it wasn't in her best interest to be present with an unrestrained panther breeding a female in heat. The two would need to be tranqed after their coupling.

Nadia struggled in her restraints but knew from experience that even the strongest men could not break out of these bonds until it was too late. Still, she was determined to fight till the end until the thoughts of doing so were literally ripped from her skull.

A tingling in her neck ran down to her chest and into her heart. This serum had been injected into the venous system. She groaned as her prized breasts lost their definition and receded into her barreling chest. A simultaneous pricking down her belly signaled the beginnings of new teats that would feed the offspring Owens was sure to fill her with. Nadia shuddered at the notion. She'd never wanted kids! Yet now it seemed her lot in life was to help repopulate panther populations whenever her loins came into heat!

Next came the itching of fur, spreading from the injection site and down her chest and arms. It started as an annoying pricking but became more and more insistent the further it spread. Nadia found herself wishing she could scratch at it, but with her hands tied, there was little she could do but feel the irritating sensations emanating from every pore. She couldn't tell by looking, but black rosettes were forming between the normal patches of black leopard fur. She was technically a black leopard, though the colloquial term for her soon-to-be species was a panther.

The ache in her fingers was beginning to intensify, and she looked down to see her nails being bloodlessly replaced with sharp, translucent crescents. The pain was emanating further within her fingers than expected, a sharp crack indicating that the connections between her phalanges were agonizingly separated. The new joints provided space for the base of feline talons as they continued to tear through her skin. The agony was akin to having needles injected into each digit all at once, and Nadia did her best to hold back the tears. She knew the change didn't normally hurt so much; it had to be the slower serum she'd been injected with. It was worth her silence, this extra pain she was enduring for her colleagues and her company. Right?

Nadia didn't want to watch her fingers contracting, the patches of black fur sprouting from her hands as her palms and fingertips grew swollen. But she forced herself too. It took her mind off the other aches and pains of her body to see her fingers diminish into stubby toes, a thick webbing holding them in place. Her thumbs receded all the way up her lengthening palm, the ability to move them all but eliminated. Yet the joints were perfect to retract and extend her still-thickening feline claws. Playing with the new muscles distracted her momentarily even as her new pads thickened, and the final diameter of her paws took form.

Her shoulders ached suddenly, causing her to wince as the blades pressed painfully against her rib cage. The force caused her chest to barrel further as her flattened blades curved down the sides of her trunk. The agony was immense, forcing the air from her lungs even as their circumference expanded to fit her new body. Her spine cracked as it dislocated, causing her flesh to strain as though it could barely contain her larger frame.

Pinpricks of pain erupted from her face as several dozen white whiskers burst forth. Her cheeks twitched, and she sneezed, trying to eliminate the discomfort. In response, her nose started to flatten, running down towards her quivering, blackening lips. Nadia could feel her cheeks becoming puffy as a throbbing in her jaw signaled that she would soon possess a panther's muzzle. The ache of its formation resonated in her skull, and she winced, trying her best not to cry, to show weakness in her last human moments.

The taste of blood drew her attention to aching gums. She ran a flattening tongue over them, shocked to feel that each tooth felt loose in their sockets. Nadia spat, her teeth falling out and collecting on the floor under the table. Soon her gums erupted with new teeth, in particular a set of fearsome canines, visible underneath quivering lips. A feline tongue ran over them in exploration, even as several backward-facing keratin spines poked from its surface to aid her in feline grooming activities and for pulling meat from bone.

A painful tingle erupted from her tailbone as her coccyx began to unfuse and press against the skin. The bones started stretching, forcing human flesh along with it as a noticeable bump formed and began to wriggle against her wishes. It continued to lengthen as the new muscles and tendons within allowed it increased flexibility as it extended inch by inch. Nadia did her best not to feel the alien growth but was overwhelmed by the new ability to move such a thing. The entire surface itched with more black fur as the tip started to twitch in irritation.

Her still-expanding nostrils caught a whiff of strong scent just then, one that overrode her fear of the slow changes. It was a powerful odor, thick and musky, and one that triggered her still-human vagina to quiver and leak a bead of moisture. Even from her position chained to the table, she could still crane her neck to see that Owens had gotten up, staring with curiosity at the new panther as her scent made him purr.

Owens slowly loped into her field of vision, his massive tail swaying lazily behind him as he circled her, showing off his feline elegance. Nadia wanted to close her eyes, but something about the way he moved intrigued her. She knew it was part of her slowly changing intellect that made her enamored by him, yet she had little recourse but to drink in all he had to offer. His scent was musky, randy, and powerful, and made her changing nose breathe in harder in an attempt to commit his smell to memory.

Much to her chagrin, Owens came up to her and sniffed her back, seemingly a little unsure by the combination of human and panther scents wafting off Nadia's sweaty, changing form. Nothing of the human Nadia once knew was present in the panther's expression. As though to prove his lack of humanity, the panther reached out a rough tongue and began grooming the bare skin of her cheek. Immediately the wet spot covered with thickening black panther fur. He was changing her faster!

Nadia's eyes started watering, and she closed them even as that wonderful tongue played over her changing facial features. She blinked a few times, her eyes seeming to change, even as the panther's tongue eased the aches and pains of her clenching jaw. The world before her was different, its contours sharper, more pronounced. The colors were a bit washed out, certain shades seemingly lost from her range of vision. But those did not interest her with the sight of the magnificent black beast before her.

Distracted by the wonderful grooming she received from her new consort, Nadia was scarcely aware of the other changes slowly plaguing her. Her feet were taking on the same dimensions as her front paws, save for the reducing stubs of large toes that shrank entirely into her stretching heel. The remaining digits diminished in length as well, and Nadia growled a distinct feline cry of pain as her new hind claws burst forth. Rough pad pads at the base of her human foot and toes held her up as her heel stretched to replace the space lost from reducing calves.

Her changes were nearing completion now as the male panther kept licking at her face, forcing Nadia to fight the urge to groom him back. She growled instead, partially from annoyance but also in part due to the pain of her sloping skull. She winced as her forehead contracted, and her head reoriented itself into a more streamlined shape. She could feel an itch above her eyelids as several more whisker-like hairs sprouted from the space.

An odd tingling rose from her ears as new muscles took root in her furry scalp, and Nadia realized with a start that she could move them independently. Her mind subconsciously played with them, and she realized, with her enhanced hearing, she could detect part of Reyna's conversation from outside the lab. It was something to do with...superiors...traitors...did that mean her?

A strange tingling emanating from her groin forced her thoughts back towards her changes, and she growled in her feline baritone as her sex started to moisten and throb. The tremors it sent over her body were maddening, and Nadia growled pitifully as feline heat overtook her form. She struggled desperately in her bonds, wanting to do something, ANYTHING to eliminate the sensations welling from her cunt lips. She needed to be filled, she needed relief from the near-painful desire from her sex to be fucked.

In her all-encompassing heat, Nadia hardly noticed that her former lover had moved behind her, as intrigued by the feline pheromones as Nadia's nose had been aroused by his male stench. She felt her vagina drip another bead of fluid and realized in horror what that meant for her future. She needed to be fucked, bred to eliminate this damn feline heat, and her body found this male panther powerfully attractive. No! She couldn't give Reyna what she wanted. Nadia had to fight! But yet, she was currently a captive not only physically but to the desires of her new form.

The male wasted little time, lapping at her cunt with his flat, rough tongue. Nadia shivered; she was thankful that the feeling on her cunt lips did not hurt as much as she had anticipated from such sensitive flesh. In fact, it felt rather pleasurable, and a rumbling vibration traveled through her body for a few moments before Nadia realized that she was purring. She shook her massive head but could not cease the pleasurable rumbling, especially now that her mate had increased his tempo. No! She didn't want to be an animal, didn't want to act like a fucking cat! Her own body was betraying her, making her a slave to the whims of her panther form.

Owens wasted no time after making sure his new mate was wet and ready for him. Without hesitation, he pulled away and lept on top of her, humping his hips while seeking her opening. She could feel the male on top of her, his weight heavier than her own. Yet her new muscle was more than sufficient to hold him as he thrust towards her opening. With a light growl, the male was in, and Nadia shivered at once from the feeling of being penetrated. She needed it. Oh FUCK, did she need it! But...it was coming...the thing she had been fearful of...

'RRRROOOOWWWWWW!" Nadia growled as the male's spines raked her inner walls. The pain was indescribable, and she winced, wishing the red hot pokers in her cunt would go away. Yet...the more the male thrusted, the more the pain contrasted with the pleasurable mating that radiated through her insides. It was the most powerful sexual experience than she'd ever felt. Nadia could feel the waves crashing inside her as her ovaries prepared for ovulation. It was as though the barbs were a signal in her mind that she needed to release now so that she could be fertilized by the male's seed. It was a powerful biological drive welling up between the still-human parts of her awareness.

She was getting close now, the red hot barbs enhancing her experience even beyond the pain they caused. It surpassed anything the human Nadia had felt, even when fucking her former human lover who was now the panther on her back. Nadia yowled as the orgasmic pleasure washed over her, and her senses whited out as she purred in contentment. It was hard to hold onto her rage at Reyna for changing her. She welcomed Owens to breed her like a beast. A swelling part of her craved the intimacy of being mated for some higher purpose that she could hardly comprehend.

In her lust-filled haze, she barely noticed the male on top of her biting down on her neck, holding her in place as his pace became more frantic. Nadia hardly registered the pain of the bite as she felt his slapping balls tense and a splash of warm fluid flowed through her cervix. The male yowled as he came, his own body spasming deep within her folds.

Spent, the male moved to lay on top of her, which enraged Nadia. Now that she had cum, his spines caused her great discomfort, and she turned around and hissed at him, wanting to swat at him, though her paws were still restrained. The male, in shock, got off her and jumped to the floor, hunching over to lick clean the fluids from his penis.

A soft click caught her attention, and Nadia realized that her restraints had been unlocked. She jumped down, surveying the room for something to help her escape. Nadia hadn't been privy to the knowledge of a cure, but one had to exist, right? It was hard to make out the labels on the vials on the shelf, and she couldn't work the cabinets with her paws, but if she was fast enough to avoid Reyna's gaze..it was a slim hope, but it was all she had.

Yet Nadia was soon overcome with the annoyance that her cunt was dripping fluids. She stopped herself, reaching down with her tongue to clean the dripping seed. Yet as she tasted the dirty opening, Nadia stopped herself. What was she doing? She was acting like a fucking cat!

She couldn't...but the irritation was getting more and more bothersome. Nadia tried to think of all the reasons NOT to lick herself clean, but it was getting harder to rationalize her hesitation. Before she realized it, her tongue tasted the salty fluids, and she was lapping with gusto, the action sending shivers of pleasure through her vaginal lips.

Nadia struggled to hold her human mind, but it was getting so cloudy. Her womb was full of semen, and she relished the idea that she would soon be with cubs. Yet for now, her fur was dirty. Her rough tongue licked at the back of her paw, cleaning her face from the male's earlier kiss. Nadia found it harder and harder to focus on the screaming voice inside that told her to stop. She felt so much pleasure from her loins and fulfillment of the act of grooming. It was so much simpler this way, right?

The smells of the male's phallus reawakened a need in her own sex, and she quickly forgot about the internal struggles that had been plaguing her mind. She had other priorities, after all! The new panther raised her tail up and to the side, resuming the lordosis position, becking her mate to fill her again. She knew that the male had much work to do. The more he bred her, the greater their chances of successful mating. She would work him, make him cum in her as many times as it took for her to be assured that her cubs would soon be on the way!

The moment the male's phallus touched her cunt lips the second time, the human Nadia was gone. She struggled a few more times, but it was far too troublesome to fight. And why bother? She had a mate, her powerful body, and she would soon have cubs to nurse. It was so much easier to fall into the contentment of being an apex predator, wonderful to relish the tremors from her sex and the rush of warm, life-giving seed from her mate!

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Reyna hung up her cell, regarding the two mating cats with a bit of regret. She had already contacted her superiors, and while they expressed their disappointment about a lack of confession, they had praised Reyna's plot in sniffing out the traitor. It seemed likely that Xross-gen, or whatever other company that sought to sabotage N.O.A.H., already had sufficient intel on their projects to send a spy. Given the presence of the A.R.C vial in her hands, Nadia's objective had been to obtain a sample of the formula. She had obviously failed, and a thorough catalog of their supplies would confirm what Reyna already knew. Every ampule was present and accounted for. Thankfully, for today at least, her superiors considered that a win.

Reyna's gaze fell back on the two panthers, both rising, the female's cunt dripping seed even as she willfully resumed mating position to beckon her mate to breed her. It seemed as though whatever human intelligence had remained was waning under the feline instincts. The serum, once more, had been successful.

Reyna sighed. She'd lost two good agents today; although one of them had been a traitor, she couldn't deny the good work Nadia had performed during her tenure at the clinic. And Owens had always been a model agent, his loyalty and dedication a rare find these days. Oh well. At least the local zoo would gain two exciting new attractions. And perhaps more, if the panther couple's mating efforts were successful.

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"She's a real beauty, Dr. Ramírez! Where do you find such great animals?" One of the handlers asked as Reyna regarded the newest exhibits of the Lincoln Zoo with intensity. Reyna often came here to visit the former subjects. She had unlimited access to the grounds and records on the training, behaviors, and health status of all the animals. N.O.A.H was a backer of the zoo, after all. It was the perfect cover to carry out their series of post-transformation studies, especially since they could loan out the work to others who had no real understanding of the truth behind their observations and recordings!

Reyna smiled. "Too many people have endangered animals that they hide away. Once my clinic receives a tip, we are, of course, obliged to set them free, find them better homes, such as here. The animals might struggle a little at first with their new surroundings, as all animals do, but wouldn't you say they are much happier here?"

Reyna took another moment to regard the changed panthers for the first time in months since they had been transferred here. The male sat on his back, lazily sleeping even as his tail thrashed, and one of his cubs started batting at it. The female was gathering their second cub, picking him up by the nape of the neck to take him back to the den. He had developed a recent interest in climbing too high in the enclosure for his size. As a mother, it was Nadia's job to keep her cub safe until he was old enough.

Reyna's smile broadened. The former spy had indeed made a good mother, and was well suited for the life of a cat!